Door closer and check.



L. o. Numan. DODR CLOSER AND CHECK.

'APPLI'OATION PILED'AUG. 18, 1914.

1,12%,94HN Patented Jan, 12, 1915.

` Figlif e We A en; i o i e tee,

;i ,iee,eei.' eeeem-e1em mee. Pai-teme@ genieen To alfwhom may concern: operate@ by means of e toggie ievel: device Be it known that 1i, ,Lev/1e C. 'l'eiz'ren, e comprising two members 3 and 4 lnlvotelly 55 citizen et' the United States, residing etlChL onnected together at 5, the member 3 be,- eago, county of Geek, State of iliineis, have lng @weten ,te Cloer at @and the member 5 invented en lmpi'ovement in @eer Clesers 4 being @wet-ed at 8 to e fixed vebutment,

and Cil-sits, of which the eilewieg desellpsuch, for instance, as the well Q. .'1 he toggle tion, in eenneetienwitfi the .eceempenynig iever may 4iie opemted 1n any siii'telole Way, 60 drawing, is eieeeiieation, like eiiei'eeters es bymeens of e handle 1Q. on the timwing repesentieg; like puits. A The device above deseribedls similar to 1e This invention i'eletes te doo? ciosei that illustrated in my (3o-pending applica,- check devices such es ere eemmeny need in tion Se. No. 899,0S9; and forms no part of eenneetion with siicling doors that are epermy present invention. 65 etedby ineens of e toggle ievei operating In door-operating devices of thlsnetur mechanism., A door-eper'eting mechanism it is. eustene iy to previe :L door Closer and 15 ef this type is shown in @fj-@ending ep Cheek which is connected to the member t of niication Se. No.' 80%,0995 Deeem er 2'?, 5.913, the toggle lever device and which operates e nd the device of the preeent eppiieetien is automatically to close the door when' the 'mi the door eioser and 'cheek device which ce letten is opened and te 'cheek the closing operates with the toggle levee mechanism to movement thereof; 20 eleee 'the riem? end simultaneously check its improved door closer and check comeleeinginovement. prises s dooi-elieeking"cylinder 13 and a The door close-rs end, cheeks :we comspi'inG-receiving cylinder 14 lconnected 7F! monly made with e spring for dosing the thereto. These two cylinders are preferably cieoi and. e dash-pet arrangement for checlfrigidly eonneeted together to form e unitary zeitwelosing mevement of the door. j structure, and the cylincler 13 is pivotally he abject of the pi'esent invention is te connected at its iowel end to the fixed abutprovide a novel door closer and cheek in ment.y as shown at 15. This cylinder has -80 which the checking portienof the device is therein a piston 16, the piston rod 17 of' inthe nature a iiquid check, and in which which extends thi-ough the cylinder i4 and se the spring by which the door is closed .is is pivotally connected at 18 to ein arm 19 situated in e eil-amber separae from the extending laterally from the toggle member Hamid-containing ehainbeiyanci also to pro- 4. The piston' 16 is pI-ovided'wth a ceng5 vide a eonstuetion of this type which can trlly-loeeted port 2O that is controlled by be readily adjusted'te allow foi' a. quicker u valve 21, said port communicating with;` 35 0i' slower checking movement, and to prothe trensvese ports 90 that open into the vide for adjusting the tension of-the cylinder in front of the piston., The valve spring; to suit the requirements ef use., 21 is held in place by a guard wire 22 which ,ggf @ther features of the invention Will be has its enclsinserted into recesses 23 formedrl`l more fully hereinafter described ansi the in the piston. The weils of the cylinder 13 e@ neveity of the invention will thenloe pointed, are provided with a. ley-pass port 24 which out in the appended claims. is controlled by e suitable valve `This 'ie the @leanings Whezcein i have shown a luy-pass port extends part Way of the lenffth 52- eeieeted embodiment of myinventienTigm-e of the eylinder andthe portion of the cyme l is ai general View shewing a sidingoor del' beyond the' kif-pass is mede slightly 4 5 operated by a toggle lever :ind having my larger than the piston. The cylinder is' improved. fooi' dieser and check usseeie'tecl iiiied with liquid, thus constituting e liquid therewith; Fi i2 is longitudinal setionel cheek, and with this construction it will be View through a door close;1 anf cheek emseen that the piston can be moved freelybefying my inventiongyig. is :i similiar outwardly when the vdoor is o en because of 5G View showing' a dieen't ferm of the inthe opening of the valve 2l. i en the door ventien. is cleeel, however, the first portion of the es e siifling cioor which is snp-` movement wili be eemparativey free, ue 1w perte@ en e "niteiile ti'eeit 2. This door is to the fat that the piston is traveling through the larger orton of heneylnler, and. the llqulcl m front o the prsom een `pass arond the letter' compererwely freelyf Wheri the piston passes the bypass goor,

.a however, and Comes into the smaller portion of the cylinder which. il; its, athen. the piston can move only as festes che lquicl can flew through the' lof/pass pori; as controlled by the valve 25. T

The spring for closing ehe door is re- 'ceved in thepring-reeeivng cylinder 14, as above stated, and m the preferred en?- bodiment of my mvemxon tlm; eylmder 1s screwed into the head 27 of the cylinder 13,

lfsed head being preferably seperate from and demohobly epplef to )the cylinder, el though it might be integral tlfrerewih. Tle head is provided with e pecking glenn?. through which #the piston rod i? passes amd which prevents :my leakage of liqe from.

@leyliner 13. The spring Which propose' to employ for ,elos'ing the door is e compound spring ormed of two members, one of which is eercnger than the other. In the llueme emborliment of my invention these two spring members are'shown a@ 31 and 3%', respeeivelg?5 and are arranged in line with eeoh hher. The spring 3l beareegeinst ehe collar 30 30 fasi; oli the pieonroi end else bears; egreioe; a separator or oemg coller 3? loosely mounted on the pieton rod., The spring; 5&2: bears al; one end agemee the separator ander Y the other end egemsl: the heeel 29 of Jehe piston'li. When ehe oor is opened. the

upwardly-swinging movement of the member draws the piston roel i7 upwardly, fshus eompressing the springe 3i, 353 and es the eprmg 32 is lghter'mr has less strenggh 49 han the spring 31 seid lighter spring 32 $5, rod l Il: Will he noted that when elle doory first be compresse@ eter which *she spring @1 will be compressed, and dering the compreseion ofthe spring 31 the coller or se :1r-eter 33 will slfle'alozrg; bhe pscn is in its open position the force of boh springs 3l and 32 is apple to @he leerallyextending am@ 19, and thus to' close the door. As'yhe ocr closes the spring' 31 is first expanded and thus' ehe reel closing movemenll of the door is ue lso the expensive force ofjhe=etronger spring. when he 'door' has been @ermlly elosed enel the stronger spring .$1 ie expemlei their the weaker springexpiends amil. finishes the closing movement of tle door. During ehs final closing movementthe door -e shocked es above described. Emili be noted elle@ 'while thestronger spring lift is acting to eloee `he door the piston cenlmfe e, eomporotively free movement in the cylinder 1S, but 'when thevstronger spring has expaocle and while the weaker Vspring s^ acting the movement of,

.dleren tension in the spring-remi' checking cylinder her/:log e heeel el;

e quick eoe'm of the loer end yet complete o ecing thereof so 'thee leer will rzofuelem.

lo orde? ro adjusf'; ehe tension of springe fpropose to edjusahly mount me heeel' 29 @nhe cylinder 14-, hs being her-ehr. aeeomplieherl by eerewhreadng seid h to the cylinder.

, In Fig: l Si here shown e slgh; e" l form of my iqur eheelr in which er 169 is tapered and Ehe end of the eyrlf; r 130 is also teperel. This ieper eone is employed im lieu of thebypese 2. En other 'reepeee ellis; eorrerbreetem le shown in .di 2, eher?, en o' elle cylimer i3 provide@ groove 26 of varying flepeh Wheh elle psem M50 to lleve e oompereeir y movemen he opper erro. o 'che efr/rr' Moreover in ehe emboroen @he o l? is edjuslzebly eoonecte ge the H As herein ehowo, Seid; en he aeflzorl ie eereW-ereeelefl ieee e heee?. 39 nel; oae e@ 18 te elle erm e being employe llo look jpelzorr ,roel l efjeezerl; poe'me eq *L erue-orr Ihe pefoze. roel or shortened hereby eo very ahe "e the pieren lo@ in ehe 'sogoered f The purpose o?? oe "eo 'Lo/roe bringing; ehe Cloer no reel; wjJh e, more gerxle movemerri.

XE claim:

A @oor closer emol eheolr compri-.er Y checking' cylinder enel Spring-rem cylinder eozmecred together, velve r in ille checking eylimler?4 e piston T1 3 rrececl thereto @nel extending thro sprlrfgreoeivng oyllmcler5 two l incler emi arranged in line Wih each o enel e, eeperelzor between seid eorrr ably :mounted on the pieton rofl end movable in saie cylinder reby eine een ecgs on the piston rol hrough @he 2. door closer amil. cheek eoroprelo an@ a, lay-pese pore,v heV :loaerior bore cylinder ejaeem saisi. pore eme'er than the remainder on? 'ehe om. vals/'eel piston in the eheelrlhg ev'iioc'er fits he 'poron ofc' smeller l' controlling ehe oy-pese e, eorrrrgr 'lng cylinder susteneel bi seid leefl.q fl rod eonneeted o the pieton l hrough 'ghe spring-recevog cher, separator in the lamer chamber vwourll'tecl on seid piston rofl and n, ely im A*che cvlnclerq :L Geller plomo rofl, @nel We Springs of dileree exon m eeiclspring-receiving interposed bezween Seial coller @om am" and he other between seid se'perer'eee es. the heed of Jhe eyliner.

3, lo e eombinefl door closer and eheel@ WT! 1,124,9e1 l l the combination with a. checking cylinder, o e eprlng-recelvmg cylmaer detachably Cenni. lied thereto and provided with an adjusabe head, a valve piston in the checking cylinder, a piston rod connected thereto and Y faz-heading through the spring-receiving cylindexg e collar fast on 'said piston rod, and. :L

separator loosely mounted on said rod and movable m the sprmg-recewmg cyhnder,

y 10 two springs, one situated between the collar:

and the separator and the other between the separator and the adjustable head, said springs being of different tension.

In testimony whereof, I have signed my name to this specication, in the presence of 15 

